This article discusses regression effects that are commonly observed in Angoff ratings where panelists tend to think that hard items are easier than they are and easy items are more difficult than they are in comparison to estimated item difficulties. Analyses of data from two credentialing exams illustrate these regression effects and the…

Numerous studies have compared the Angoff standard-setting procedure to other standard-setting methods, but relatively few studies have evaluated the procedure based on internal criteria. This study uses a generalizability theory framework to evaluate the stability of the estimated cut score. To provide a measure of internal consistency, this…

Credentialing programs were surveyed to determine the procedures they use to set performance standards on multiple-choice and open-ended assessments. Implications of the various standard-setting approaches for the National Assessment of Educational Progress are discussed, and it is asserted that generalizing from standard-setting in professional…

The major forms of evidence that support a standard's credibility are reviewed, and what can be done over time and for different forms of an examination to enhance its comparability in a credentialing setting is outlined. Pass-fail decisions must be consistent to ensure a standard's credibility. (SLD)

The experience of the National Board for Professional Teaching Standards illustrates how issues of assessing the content representativeness of performance assessment can be addressed to ensure validity for certification procedures. Explores the challenges of collecting validation evidence when expert judgments of content are used. (SLD)

A brief history of developments in the assessment of the reliability of credentialing examinations is presented, and some new results are outlined that highlight the interactions among scoring, standard setting, and the reliability and validity of pass-fail decisions. Decision consistency is an important concept in evaluating credentialing…